Comprehensive RFID

A tag or transponder that consists of a microchip with an antenna that is electronically programmed with unique information. Each paper-thin tag contains an etched antenna and a microchip with a capacity of more than 64 bits of information. There are three types: read only, WORM (Write-Once-Read- Many), and read/write.

There are 2 types of tags available:

RFID Active Tags: Active Tags are radio frequency identification devices which require batteries for their operation. Active tags have a life of about ten years, due to their batteries. Still, active tags are an interesting option that allows higher data transmission rates and greater distances between tag and reader. They also offer better performance in electro magnetically noisy environments.

RFID Passive Tags: Passive tags are radio frequency identification devices that do not have any internal power source. Their energy source is the power emitted from adjacent antennas.

Comprehensive RFID

A reader or sensor with an antenna that interrogates the tags.

The reader sends out electromagnetic waves. The tag antenna is tuned to receive these waves. A passive RFID tag draws power from field created by the reader and uses it to power the microchip’s circuits. 

The chip then modulates the waves that the tag sends back to the reader and the reader converts the new waves into digital data.

Comprehensive RFID

A server or docking station on which the software that interfaces with the RFID is loaded. The software can be linked to the readers and sensors.

Comprehensive RFID

The read range of passive tags depends on many factors: the frequency of operation, the power of the reader, interference from metal objects or other radio frequency devices. In general, low-frequency tags are read from a foot or less. High frequency tags are read from about three feet and UHF tags are read from 10 to 20 feet. Where longer ranges are needed, active tags use batteries to boost read ranges to 300 feet or more.  Passive  tags  are  undoubtedly  less  expensive  than  active  tags  and  can  be disposed of with the product’s packaging.

Comprehensive RFID

The read range of passive tags depends on many factors: the frequency of operation, the power of the reader, interference from metal objects or other radio frequency devices. In general, low-frequency tags are read from a foot or less. High frequency tags are read from about three feet and UHF tags are read from 10 to 20 feet. Where longer ranges are needed, active tags use batteries to boost read ranges to 300 feet or more.  Passive  tags  are  undoubtedly  less  expensive  than  active  tags  and  can  be disposed of with the product’s packaging.

Comprehensive RFID

The read range of passive tags depends on many factors: the frequency of operation, the power of the reader, interference from metal objects or other radio frequency devices. In general, low-frequency tags are read from a foot or less. High frequency tags are read from about three feet and UHF tags are read from 10 to 20 feet. Where longer ranges are needed, active tags use batteries to boost read ranges to 300 feet or more.  Passive  tags  are  undoubtedly  less  expensive  than  active  tags  and  can  be disposed of with the product’s packaging.